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A111416
f(f(n+1))-f(f(n)), where f(m) = m! = A000142(m).
0
0, 1, 718, 620448401733239439359280
OFFSET
0,3
CROSSREFS
Sequence in context: A332171 A220724 A034587 * A252528 A351669 A361345
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Nov 12 2005
EXTENSIONS
~Definition corrected by N. J. A. Sloane, Feb 14 2018
STATUS
approved